21-1672.fm Page 1 Thursday, August 5, 1999 12:04 PM Cat. No. 21-1672 OWNER’S MANUAL Please read before using this equipment.
1-1672.fm Page 2 Thursday, August 5, 1999 12:04 PM FEATURES Your Radio Shack TRC-232 4-Watt 40-Channel CB WalkieTalkie is a portable, two-way citizen’s band radio that you can carry almost anywhere. Use it around the house, in your office, or in your car or boat. You can put your walkie-talkie to good use on fishing and camping trips, or you can use it in your business for security patrols, supervisors, or warehouse personnel.
21-1672.fm Page 3 Thursday, August 5, 1999 12:04 PM Built-In, Ceramic Filters — ensure superior selectivity and freedom from adjacent-channel interference. Automatic Modulation Control — ensures a constant RF modulation level. Automatic Gain Control — maintains a constant volume level, regardless of the signal strength. Automatic Noise Limiter — helps reduce noise caused by nearby electrical equipment, such as motors or automotive ignition systems.
21-1672.fm Page 4 Thursday, August 5, 1999 12:04 PM CONTENTS Preparation ............................................................................ 6 Connecting an Antenna ................................................... 6 Power Sources ................................................................. 8 Using Alkaline Batteries ............................................ 8 Using Rechargeable Batteries ................................ 10 Charging Nickel-Cadmium Batteries .......................
21-1672.fm Page 5 Thursday, August 5, 1999 12:04 PM Replacing the DC Car Adapter Fuse .............................. 35 Specifications ..................................................................... 36 PREPARATION CONNECTING AN ANTENNA Caution: To prevent damage to your walkie-talkie, you must connect an antenna before you operate the walkie-talkie. Your walkie-talkie comes with a helical antenna that is ideal for most applications.
21-1672.fm Page 6 Thursday, August 5, 1999 12:04 PM 3. Press down and turn the antenna’s base clockwise until it locks into place. Note: If you are powering your walkie-talkie from your vehicle’s cigarette lighter socket or from AC power, you can connect the supplied DC adapter cord’s antenna connector to an external antenna (see “Using Vehicle Battery Power” on Page 13 or “Using AC Power” on Page 15).
21-1672.fm Page 7 Thursday, August 5, 1999 12:04 PM Warning: Use extreme caution when installing or removing an outdoor antenna. If the antenna starts to fall, let it go! It could contact overhead power lines. If the antenna touches a power line, contact with the antenna, mast, cable, or guy wires can cause electrocution and death. Call the power company to remove the antenna. DO NOT attempt to do so yourself.
21-1672.fm Page 8 Thursday, August 5, 1999 12:04 PM Follow these steps to install batteries in the alkaline battery case. 1. If the alkaline battery case is connected to the walkietalkie, push the battery latch up and slide the battery case off the walkie-talkie. 2. Using your thumb, press down on one of the arrow marks on top of the battery case and pull it open. 3.
21-1672.fm Page 9 Thursday, August 5, 1999 12:04 PM 4. Press the battery case back together and slide it onto the walkie-talkie. Cautions: • Never mix different types of batteries, and never mix old and new batteries. • Do not put alkaline batteries in the rechargeable battery case. • Use only replacement batteries of the required type. • Do not dispose of the batteries in a fire because they can explode. • Do not open or mutilate a battery. Swallowing a battery can be fatal.
21-1672.fm Page 10 Thursday, August 5, 1999 12:04 PM Follow these steps to install batteries in the rechargeable battery case. 1. If the rechargeable battery case is connected to the walkietalkie, push the battery latch up and slide the battery case off the walkie-talkie. 2. Using your thumb, press down on one of the arrow marks on top of the battery case and pull it open. 3.
21-1672.fm Page 11 Thursday, August 5, 1999 12:04 PM • Do not dispose of the batteries in a fire because they can explode. • Do not open or mutilate a battery. Swallowing a battery can be fatal. • Be careful not to short the batteries with conducting materials, such as rings, bracelets, and keys. The batteries or conductor might overheat and burn. • At the end of a rechargeable battery’s useful life, it must be recycled or disposed of properly.
21-1672.fm Page 12 Thursday, August 5, 1999 12:04 PM Uncap the power jack cover on the battery case, attach the adapter plug to the adapter, insert the adapter plug into the power jack, then plug the charger into a standard AC outlet. Warning: Never try to recharge alkaline or other nonrechargeable batteries. Charging non-rechargeable batteries can cause them to become very hot and possibly explode.
21-1672.fm Page 13 Thursday, August 5, 1999 12:04 PM Using Vehicle Battery Power Your walkie-talkie comes with a DC car adapter that is ideal for use in your vehicle. It lets you power your walkie-talkie from your vehicle’s cigarette lighter socket (if your vehicle has a 12-volt negative-ground electrical system), and its antenna adapter connector makes it easy to connect to an external antenna mounted on your vehicle. Your local Radio Shack store sells a wide variety of mobile walkie-talkie antennas.
21-1672.fm Page 14 Thursday, August 5, 1999 12:04 PM 3. Insert the cigarette lighter plug into your vehicle’s cigarette lighter socket. Note: If the walkie-talkie does not operate properly when you use the DC car adapter, unplug the cord from the lighter socket and clean any ashes or other debris from the socket. If it still does not operate properly, check the fuse in the DC car adapter plug (see “Replacing the DC Car Adapter Fuse” on Page 34). 4.
21-1672.fm Page 15 Thursday, August 5, 1999 12:04 PM Using AC Power You can operate the walkie-talkie from AC power using the supplied DC car adapter, a 12-volt DC power supply (such as Cat. No. 22-120), and a cigarette lighter accessory outlet (such as Cat. No. 270-1539). The supplied DC car adapter also lets you connect an external, mounted walkie-talkie antenna. Note: Most 12-volt DC power supplies plug into a standard AC outlet to produce DC power.
21-1672.fm Page 16 Thursday, August 5, 1999 12:04 PM Caution: Before plugging the plug into your cigarette lighter accessory outlet, make sure the cap is screwed firmly onto the plug. See “Replacing the DC Car Adapter Fuse” on Page 34 for more information about the cigarette lighter plug. 3. Insert the cigarette lighter plug on the DC car adapter into the cigarette lighter accessory outlet. 4. Connect the DC power supply to a standard AC outlet. 5.
21-1672.fm Page 17 Thursday, August 5, 1999 12:04 PM 6. When you finish using the DC adapter cord, disconnect it from the cigarette lighter accessory outlet. Then disconnect the adapter cord from your walkie-talkie. Reconnect the supplied antenna to the antenna jack on the walkie-talkie. USING AN EXTERNAL SPEAKER In a noisy area, an external speaker positioned in the right place might provide more comfortable listening. Remove the cap and plug the speaker cable’s 1/8-inch (3.
21-1672.fm Page 18 Thursday, August 5, 1999 12:04 PM CONNECTING AN EXTERNAL SPEAKER/MICROPHONE You can use an external speaker/microphone (such as Cat. No. 19-310) for hands-free operation. Remove the cap and plug the speaker/microphone’s connector into the walkie-talkie’s MIC and SPK jacks. USING THE WRIST STRAP You can use the attached wrist strap to keep the walkie-talkie accessible. Simply slip the strap over your hand.
21-1672.fm Page 19 Thursday, August 5, 1999 12:04 PM OPERATION Before you use your walkie-talkie, you should know how to use it effectively and courteously. “Operational Hints” contains information that will help you get more enjoyment from your walkietalkie. RECEIVING TRANSMISSIONS AND ADJUSTING SQUELCH 1. Turn SQUELCH fully counterclockwise. 2. Turn on the power by turning VOLUME clockwise.
21-1672.fm Page 20 Thursday, August 5, 1999 12:04 PM 3. Press UP or DWN until the desired channel appears on the display. As you receive signals, the signal meter on the display shows the incoming signal strength. Important! Channel 9 is reserved for motorist assistance and for reporting emergency information about accidents, hazardous road conditions, and so on. Always give emergency messages priority on Channel 9. 4. Adjust SQUELCH to cut out background noise between transmissions.
-1672.fm Page 21 Thursday, August 5, 1999 12:04 PM TRANSMITTING 1. Follow the steps described in “Receiving Transmissions and Adjusting Squelch.” 2. To transmit, press PTT. TX appears on the display. The RF Out meter on the display shows the output level. Hold the walkie-talkie about 2–3 inches from your mouth and speak slowly and clearly in a normal tone of voice. Note: A built-in automatic modulation circuit adjusts the microphone’s sensitivity to allow for a wide variety of voice levels. 3.
21-1672.fm Page 22 Thursday, August 5, 1999 12:04 PM 4. Press H/L to set the output power to low power, if necessary. LOW appears on the display. Use this mode to transmit to nearby units. If the other walkie-talkie is farther away or the receiving person complains of noise, press H/L again to set it to high output power. LOW disappears from the display. 5. To turn off the walkie-talkie, turn VOLUME counterclockwise until you hear it click.
21-1672.fm Page 23 Thursday, August 5, 1999 12:04 PM Turning On/Off the Light Press LGT to turn on and off the display’s light. Using Last Channel Recall Press LCR to return to the last channel that was used for longer than 3 seconds or was transmitted on.
21-1672.fm Page 24 Thursday, August 5, 1999 12:04 PM Scanning Incoming Signals To scan incoming signals, press SCAN. SCAN appears on the display, and the walkie-talkie stops for 5 seconds on each channel where there is a transmission. Press SCAN again to stop automatic scanning. SCAN disappears from the display. Alternating Between Two Channels To alternate between two channels, select one channel and press DW (dual watch). DW appears on the display.
21-1672.fm Page 25 Thursday, August 5, 1999 12:04 PM The walkie-talkie alternates between the first selected channel (the dual watch channel) and the currently selected channel. Whenever the walkie-talkie detects a transmission on the first channel, it switches back to that channel. After 5 seconds, the walkie-talkie returns to the second channel (even if the transmission is not complete). To turn off dual watch, press DW. DW disappears from the display.
21-1672.fm Page 26 Thursday, August 5, 1999 12:04 PM Locking the Functions Use the LOCK switch to lock the walkie-talkie’s functions (except PTT, LGT, and H/L) to prevent accidental program changes. Press LOCK so LOCK appears on the display. To release the lock, press LOCK again. LOCK disappears from the display. POWER SAVER Your walkie-talkie features a special power saver circuit.
21-1672.fm Page 27 Thursday, August 5, 1999 12:04 PM OPERATIONAL HINTS Like most activities, CB radio has its customs and courtesies. The following tips will help you get the most enjoyment from your walkie-talkie. COMMON USES FOR A CB RADIO Business Uses • Truck drivers and delivery personnel can learn road and traffic conditions and get assistance in locating destinations. A CB radio is also good company on those “long hauls.
21-1672.fm Page 28 Thursday, August 5, 1999 12:04 PM • If you are a two-car (or more) family, CB radios are great for communicating with family members while they are in their cars. • Contact friends or neighbors — find out “what’s happening” or plan a get-together. • Ever have car trouble or run out of gas on the highway? What an assurance it is to be able to radio for assistance! • Camping, fishing, and other sports are more fun with a CB radio. Locate a buddy or find out “what’s cooking” back at camp.
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21-1672.fm Page 30 Thursday, August 5, 1999 12:04 PM This table lists codes adopted by the Associated Public Safety Communications Officers (APCO). Code 30 Meaning 10-1 Your signal is bad. 10-2 Your signal is good. 10-3 Stop transmitting. 10-4 Message received and understood. 10-5 Relay information to _____. 10-6 I am busy or are you busy? 10-7 Out of service. 10-8 In service. 10-9 Repeat last message. 10-10 Negative (NO). 10-11 _____ in service. 10-12 Stand by.
21-1672.fm Page 31 Thursday, August 5, 1999 12:04 PM Code Meaning 10-17 En route. 10-18 Urgent. 10-19 Contact _____. 10-20 What is your location? 10-21 Call _____ by telephone. 10-22 Cancel last message. 10-23 Arrived at the scene. 10-24 Assignment complete. 10-25 Meet _____. 10-26 Estimated time of arrival is _____. 10-30 Use caution. 10-31 Pick up. 10-33 Emergency traffic. Clear the channel. 10-34 What time is it? 10-41 Switch to Channel xx. 10-62 Cannot understand.
21-1672.fm Page 32 Thursday, August 5, 1999 12:04 PM CARE Your Radio Shack TRC-232 4-Watt 40-Channel CB WalkieTalkie is an example of superior design and craftsmanship. The following suggestions will help you care for the CB radio so you can enjoy it for years. • Keep the walkie-talkie dry. If it gets wet, wipe it dry immediately. Liquids can contain minerals that can corrode the electronic circuits. • Handle the walkie-talkie gently and carefully.
21-1672.fm Page 33 Thursday, August 5, 1999 12:04 PM FCC INFORMATION The Federal Communications Commission (FCC) does not require you to have a license to operate this CB radio. However, you must know Part 95 of FCC Rules. It explains the proper operation of a Class D citizens band transceiver. We enclosed a copy of Part 95 with your CB radio. Warning: Do not open the CB radio to make any internal adjustments. A CB radio is set up to transmit a regulated signal on an assigned frequency.
21-1672.fm Page 34 Thursday, August 5, 1999 12:04 PM This device complies with Part 15 of FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. REPLACING THE DC CAR ADAPTER FUSE The DC car adapter has a 32V 2-amp fuse in the cigarette lighter plug. When replacement is required, use a slow-blow glass fuse, such as Cat. No. 270-1023.
21-1672.fm Page 35 Thursday, August 5, 1999 12:04 PM SPECIFICATIONS RECEIVER Frequency Coverage ................................ 26.965–27.405 MHz Sensitivity ......................................... 0.7 mV for 10dB (S+N)/N Adjacent Channel Rejection ............................................ 65 dB Audio Distortion at 1 kHz .................................. Less than 10% at 0.6 watts output (8 ohm) Intermediate Frequency: 1st ................................................................... 10.
21-1672.fm Page 36 Thursday, August 5, 1999 12:04 PM Frequency Tolerance ................................................. 0.002% Current Drain (with modulation): HI Position ........................................................ 1000 mA LOW Position ..................................................... 800 mA GENERAL Power Requirements ........................................... 12 volts DC Speaker ...................................................... 11/4 Inch (3.
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21-1672.fm Page 40 Thursday, August 5, 1999 12:04 PM RADIO SHACK LIMITED WARRANTY This product is warranted against defects for 90 days from date of purchase from Radio Shack company-owned stores and authorized Radio Shack franchisees and dealers. Within this period, we will repair it without charge for parts and labor. Simply bring your Radio Shack sales slip as proof of purchase date to any Radio Shack store. Warranty does not cover transportation costs.
